#include "mainwindow.h"
#include "ui_mainwindow.h"

#include "weathertool.h"


#define INCREMENT 3 // 温度单位增减幅度
#define POINT_RADIUS 3 // 曲线描点的大小
#define TEXT_OFFSET_X 12
#define TEXT_OFFSET_Y 12



MainWindow::MainWindow(QWidget *parent)
    : QMainWindow(parent)
    , ui(new Ui::MainWindow)
{
    ui->setupUi(this);

    setWindowFlag(Qt::FramelessWindowHint);//为了美观，设置窗口为无边框, 后续添加右键关闭窗口的方法
    setFixedSize(width(), height()); //设置固定窗口大小

    // 构建右键菜单
    mExitMenu = new QMenu(this);
    mExitAct = new QAction();

    mExitAct->setText("退出");
    mExitAct->setIcon(QIcon(":/res/close.png"));

    mExitMenu->addAction(mExitAct);

//    connect(mExitAct, , this, &QMainWindow::close); //右键显示菜单，点击菜单项退出
    connect(mExitAct, &QAction::triggered, this, [=]() {
        qApp->exit(0);
    });

    //将控件添加到控件数组
    mWeekList << ui->lblWeek0 << ui->lblWeek1 << ui->lblWeek2 << ui->lblWeek3 << ui->lblWeek4 << ui->lblWeek5;
    mDateList << ui->lblDate0 << ui->lblDate1 << ui->lblDate2 << ui->lblDate3 << ui->lblDate4 << ui->lblDate5;
    mTypeList << ui->lblType0 << ui->lblType1 << ui->lblType2 << ui->lblType3 << ui->lblType4 << ui->lblType5;
    mTypeIconList << ui->lblTypeIcon0 << ui->lblTypeIcon1 << ui->lblTypeIcon2 << ui->lblTypeIcon3 <<
                     ui->lblTypeIcon4 << ui->lblTypeIcon5;
    mAqiList << ui->lblQuality0 << ui->lblQuality1 << ui->lblQuality2 << ui->lblQuality3 <<
                ui->lblQuality4 << ui->lblQuality5;
    mFxList << ui->lblFx0 << ui->lblFx1 << ui->lblFx2 << ui->lblFx3 << ui->lblFx4 << ui->lblFx5;
    mFlList << ui->lblFl0 << ui->lblFl1 << ui->lblFl2 << ui->lblFl3 << ui->lblFl4 << ui->lblFl5;


    // 天气类型图标
    mTypeMap.insert("暴雪", ":/res/type/BaoXue.png");
    mTypeMap.insert("暴雪", ":/res/type/BaoYu.png");
    mTypeMap.insert("大雨到大暴雨", ":/res/type/BaoYuDaoDaBaoYu.png");
    mTypeMap.insert("大暴雨", ":/res/type/DaBaoYu.png");
    mTypeMap.insert("大暴雨到特大暴雨", ":/res/type/DaBaoYuDaoTeDaBaoYu.png");
    mTypeMap.insert("大到暴雪", ":/res/type/DaDaoBaoXue.png");
    mTypeMap.insert("大到暴雨", ":/res/type/DaDaoBaoYu.png");
    mTypeMap.insert("大雪", ":/res/type/DaXue.png");
    mTypeMap.insert("大雨", ":/res/type/DaYu.png");
    mTypeMap.insert("多雨", ":/res/type/DongYu.png");
    mTypeMap.insert("多云", ":/res/type/DuoYun.png");
    mTypeMap.insert("浮沉", ":/res/type/FuChen.png");
    mTypeMap.insert("雷阵雨", ":/res/type/LeiZhenYu.png");
    mTypeMap.insert("雷阵雨有冰雹", ":/res/type/LeiZhenYuBanYouBingBao.png");
    mTypeMap.insert("霾", ":/res/type/Mai.png");
    mTypeMap.insert("晴", ":/res/type/Qing.png");
    mTypeMap.insert("强沙尘暴", ":/res/type/QiangShaChenBao.png");
    mTypeMap.insert("未定义", ":/res/type/undefined.png");
    mTypeMap.insert("雾", ":/res/type/Wu.png");
    mTypeMap.insert("小到中雪", ":/res/type/XiaoDaoZhongXue.png");
    mTypeMap.insert("小到中雨", ":/res/type/XiaoDaoZhongYu.png");
    mTypeMap.insert("小雪", ":/res/type/XiaoXue.png");
    mTypeMap.insert("小雨", ":/res/type/XiaoYu.png");
    mTypeMap.insert("雪", ":/res/type/Xue.png");
    mTypeMap.insert("扬沙", ":/res/type/YangSha.png");
    mTypeMap.insert("阴", ":/res/type/Yin.png");
    mTypeMap.insert("雨", ":/res/type/Yu.png");
    mTypeMap.insert("雨夹雪", ":/res/type/YuJiaXue.png");
    mTypeMap.insert("阵雪", ":/res/type/ZhenXue.png");
    mTypeMap.insert("阵雨", ":/res/type/ZhenYu.png");
    mTypeMap.insert("中到大雪", ":/res/type/ZhongDaoDaXue.png");
    mTypeMap.insert("中到大雨", ":/res/type/ZhongDaoDaYu.png");
    mTypeMap.insert("中雪", ":/res/type/ZhongXue.png");
    mTypeMap.insert("中雨", ":/res/type/ZhongYu.png");





    //网络请求
    mNetAccessManager = new QNetworkAccessManager(this);
    connect(mNetAccessManager, &QNetworkAccessManager::finished, this, &MainWindow::onReplied);

    // 直接在构造中，请求数据
//    getWeatherInfo("101010100");
    getWeatherInfo("南宁");


    // 给标签添加时间过滤器
    ui->lblHighCurve->installEventFilter(this);
    ui->lblLowCurve->installEventFilter(this);
}

MainWindow::~MainWindow()
{
    delete ui;
}


// 重写父类的虚函数，父类默认是忽略右键菜单事件，重现后可实现右键菜单时间
void MainWindow::contextMenuEvent(QContextMenuEvent *event)
{
    // 弹出右键菜单
    mExitMenu->exec(QCursor::pos()); // 在鼠标右键单击的位置显示出菜单
    event->accept(); // 表示事件已处理，不需要向上传递，可写可不写
}

void MainWindow::mousePressEvent(QMouseEvent *event)
{
    mOffset = event->globalPosition().toPoint() - this->pos();
}

void MainWindow::mouseMoveEvent(QMouseEvent *event)
{
    this->move(event->globalPosition().toPoint()- mOffset);
}

void MainWindow::getWeatherInfo(QString cityName)
{
    QString cityCode = WeatherTool::getCityCode(cityName);
    if (cityCode.isEmpty()) {
        QMessageBox::warning(this, "天气", "请检查输入是否正确", QMessageBox::Ok);
        return;
    }

    QUrl url("http://t.weather.itboy.net/api/weather/city/" + cityCode);
    mNetAccessManager->get(QNetworkRequest(url));
}

void MainWindow::parseJson(QByteArray &byteArray)
{
    QJsonParseError err;
    QJsonDocument doc = QJsonDocument::fromJson(byteArray, &err);
    if (err.error != QJsonParseError::NoError) { //解析出错
        return;
    }
    QJsonObject rootObj = doc.object();
    qDebug() << rootObj.value("message").toString();

    // 1.解析日期和城市
    mToday.date = rootObj.value("date").toString();
    mToday.city = rootObj.value("cityInfo").toObject().value("city").toString();

    // 2.解析yestoday
    QJsonObject objData = rootObj.value("data").toObject();
    QJsonObject objYesterday = objData.value("yesterday").toObject();
    mDay[0].week = objYesterday.value("week").toString();
    mDay[0].date = objYesterday.value("ymd").toString();
    mDay[0].type = objYesterday.value("type").toString();

    QString s;
    s = objYesterday.value("high").toString().split(" ").at(1);
    mDay[0].high = s.left(s.length()-1).toInt();

    s = objYesterday.value("low").toString().split(" ").at(1);
    mDay[0].low = s.left(s.length()-1).toInt();

    // 风向、风力
    mDay[0].fx = objYesterday.value("fx").toString();
    mDay[0].fl = objYesterday.value("fl").toString();

    // 空气污染指数
    mDay[0].aqi = objYesterday.value("aqi").toInt();

    // 3.解析forcast中五天的数据, 包括从今天开始计算的五天
    QJsonArray forecastArr = objData.value("forecast").toArray();
    for (int i = 0; i < 5; i++) {
        QJsonObject objForecast = forecastArr[i].toObject();
        mDay[i+1].week = objForecast.value("week").toString();
        mDay[i+1].date = objForecast.value("ymd").toString();
        mDay[i+1].type = objForecast.value("type").toString();
        mDay[i+1].fx = objForecast.value("fx").toString();
        mDay[i+1].fl = objForecast.value("fl").toString();
        mDay[i+1].aqi = objForecast.value("aqi").toInt();

        QString s;
        s = objForecast.value("high").toString().split(" ").at(1);
        mDay[i+1].high = s.left(s.length()-1).toInt();

        s = objForecast.value("low").toString().split(" ").at(1);
        mDay[i+1].low = s.left(s.length()-1).toInt();
    }

    // 4.解析今天的数据
    mToday.ganmao = objData.value("ganmao").toString();
    mToday.wendu = objData.value("wendu").toString().toInt();
    mToday.shidu = objData.value("shidu").toString();
    mToday.pm25 = objData.value("pm25").toInt();
    mToday.quality = objData.value("quality").toString();
    mToday.type = mDay[1].type;
    mToday.fx = mDay[1].fx;
    mToday.fl = mDay[1].fl;
    mToday.high = mDay[1].high;
    mToday.low = mDay[1].low;
    //日期和城市 在1.中已经获得

    // 5.更新UI
    updateUI();

    // 6. 绘制温度曲线
    ui->lblHighCurve->update();
    ui->lblLowCurve->update();




}

void MainWindow::updateUI()
{
    // 1.更新日期和城市
//    ui->lblDate->setText(mToday.date); 默认是 2023-04-24格式, 换另外一种标准化的格式，采用下行的编写方式
    ui->lblDate->setText(QDateTime::fromString(mToday.date, "yyyyMMdd").toString("yyyy/MM/dd") + " " + mDay[1].week);
    ui->lblCity->setText(mToday.city);

    // 2.更新今天
    ui->lblTypeIcon->setPixmap(mTypeMap[mToday.type]);
    ui->lblTemp->setText(QString::number(mToday.wendu));
    ui->lblType->setText(mToday.type);
    ui->lblLowHigh->setText(QString::number(mToday.low) + "~" + QString::number(mToday.high) + "°C");
    ui->lblGanMao->setText("感冒指数: " + mToday.ganmao);
    ui->lblWindFx->setText(mToday.fx);
    ui->lblWindFl->setText(mToday.fl);
    ui->lblPM25->setText(QString::number(mToday.pm25));
    ui->lblShiDu->setText(mToday.shidu);
    ui->lblQuality->setText(mToday.quality);

    // 3.更新六天
    for (int i = 0; i < 6; i++) {
        // 3.1 更新日期和时间
        mWeekList[i]->setText("周" + mDay[i].week.right(1));
        ui->lblWeek0->setText("昨天");
        ui->lblWeek1->setText("今天");
        ui->lblWeek2->setText("明天");

        QStringList ymdList = mDay[i].date.split("-");
        mDateList[i]->setText(ymdList[1] + "/" + ymdList[2]);

        // 3.2 更新天气类型
        mTypeList[i]->setText(mDay[i].type);
        mTypeIconList[i]->setPixmap(mTypeMap[mDay[i].type]);


        // 3.3 更新空气质量
        if (mDay[i].aqi >= 0 && mDay[i].aqi <= 50) {
            mAqiList[i]->setText("优");
            mAqiList[i]->setStyleSheet("background-color: rgb(121, 184, 0);");
        } else if (mDay[i].aqi > 50 && mDay[i].aqi <= 100) {
            mAqiList[i]->setText("良");
            mAqiList[i]->setStyleSheet("background-color: rgb(255, 187, 23);");
        } else if (mDay[i].aqi > 100 && mDay[i].aqi <= 150) {
            mAqiList[i]->setText("轻度");
            mAqiList[i]->setStyleSheet("background-color: rgb(255, 87, 97);");
        } else if (mDay[i].aqi > 150 && mDay[i].aqi <= 200) {
            mAqiList[i]->setText("中度");
            mAqiList[i]->setStyleSheet("background-color: rgb(235, 17, 27);");
        } else if (mDay[i].aqi > 200 && mDay[i].aqi <= 250) {
            mAqiList[i]->setText("重度");
            mAqiList[i]->setStyleSheet("background-color: rgb(170, 0, 0);");
        } else {
            mAqiList[i]->setText("严重");
            mAqiList[i]->setStyleSheet("background-color: rgb(110, 0, 0);");
        }

        // 3.4 更新风力、风向
        mFxList[i]->setText(mDay[i].fx);
        mFlList[i]->setText(mDay[i].fl);

    }
}

bool MainWindow::eventFilter(QObject *watched, QEvent *event)
{
    if (watched == ui->lblHighCurve && event->type() == QEvent::Paint) {
        paintHighCure();
    }

    if (watched == ui->lblLowCurve && event->type() == QEvent::Paint) {
        paintLowCure();
    }

    return QWidget::eventFilter(watched, event);
}

void MainWindow::paintHighCure()
{
    QPainter painter(ui->lblHighCurve);
    painter.setRenderHint(QPainter::Antialiasing, true); //打开抗锯齿

    // 1. 获取x坐标
    int pointX[6] = {0};
    for (int i = 0; i < 6; i++) {
        pointX[i] = mWeekList[i]->pos().x() + mWeekList[i]->width() / 2;
    }

    int tempSum = 0;
    int tempAverage = 0;
    for (int i = 0; i < 6; i++) {
        tempSum += mDay[i].high;
    }
    tempAverage = tempSum / 6;

    // 2. 获取y坐标
    int pointY[6] = {0};
    int yCenter = ui->lblHighCurve->height() / 2;
    for (int i = 0; i < 6; i++) {
        pointY[i] = yCenter - ((mDay[i].high - tempAverage) * INCREMENT);
    }

    // 3. 开始绘制
    // 3.1 初始化画笔
    QPen pen = painter.pen();
    pen.setWidth(1);
    pen.setColor(QColor(255, 170, 0));
    painter.setPen(pen);
    painter.setBrush(QColor(255, 170, 0));


    // 3.2 画点、写文本
    for (int i = 0; i < 6; i++) {
        //显示点
        painter.drawEllipse(QPoint(pointX[i], pointY[i]), POINT_RADIUS, POINT_RADIUS);
        //显示温度值
        painter.drawText(QPoint(pointX[i] - TEXT_OFFSET_X, pointY[i] - TEXT_OFFSET_Y), QString::number(mDay[i].high) + "°");
    }

    // 3.3 连线
    for (int i = 0; i < 5; i++) {
        if (i == 0) {
            pen.setStyle(Qt::DotLine); // 虚线
            painter.setPen(pen);
        } else {
            pen.setStyle(Qt::SolidLine); // 实线
            painter.setPen(pen);
        }
        painter.drawLine(pointX[i], pointY[i], pointX[i+1], pointY[i+1]);

    }
}

void MainWindow::paintLowCure()
{
    QPainter painter(ui->lblLowCurve);
    painter.setRenderHint(QPainter::Antialiasing, true); //打开抗锯齿

    // 1. 获取x坐标
    int pointX[6] = {0};
    for (int i = 0; i < 6; i++) {
        pointX[i] = mWeekList[i]->pos().x() + mWeekList[i]->width() / 2;
    }

    int tempSum = 0;
    int tempAverage = 0;
    for (int i = 0; i < 6; i++) {
        tempSum += mDay[i].low;
    }
    tempAverage = tempSum / 6;

    // 2. 获取y坐标
    int pointY[6] = {0};
    int yCenter = ui->lblLowCurve->height() / 2;
    for (int i = 0; i < 6; i++) {
        pointY[i] = yCenter - ((mDay[i].low - tempAverage) * INCREMENT);
    }

    // 3. 开始绘制
    // 3.1 初始化画笔
    QPen pen = painter.pen();
    pen.setWidth(1);
    pen.setColor(QColor(0, 255, 255));
    painter.setPen(pen);
    painter.setBrush(QColor(0, 255, 255));


    // 3.2 画点、写文本
    for (int i = 0; i < 6; i++) {
        //显示点
        painter.drawEllipse(QPoint(pointX[i], pointY[i]), POINT_RADIUS, POINT_RADIUS);
        //显示温度值
        painter.drawText(QPoint(pointX[i] - TEXT_OFFSET_X, pointY[i] - TEXT_OFFSET_Y), QString::number(mDay[i].low) + "°");
    }

    // 3.3 连线
    for (int i = 0; i < 5; i++) {
        if (i == 0) {
            pen.setStyle(Qt::DotLine); // 虚线
            painter.setPen(pen);
        } else {
            pen.setStyle(Qt::SolidLine); // 实线
            painter.setPen(pen);
        }
        painter.drawLine(pointX[i], pointY[i], pointX[i+1], pointY[i+1]);

    }
}


void MainWindow::onReplied(QNetworkReply *reply)
{
    qDebug() << "onReplied success!";

    int status_code = reply->attribute(QNetworkRequest::HttpStatusCodeAttribute).toInt(); //获取请求响应码
    qDebug() << "operation: " << reply->operation();
    qDebug() << "status_code: " << status_code;
    qDebug() << "url: " << reply->url();
    qDebug() << "raw header: " << reply->rawHeaderList();

    if (reply->error() != QNetworkReply::NoError || status_code != 200) { // 网络请求错误
        qDebug("%s(%d), error: %s", __FUNCTION__, __LINE__, reply->errorString().toLatin1().data());
        QMessageBox::warning(this, "天气", "请求数据失败", QMessageBox::Ok);
    } else {
        QByteArray byteArray = reply->readAll();
        qDebug() << byteArray.data();
//        qDebug() << "read All...";
        parseJson(byteArray);
    }

    reply->deleteLater();
}


void MainWindow::on_btnSearch_clicked()
{
    QString cityName = ui->leCity->text();
    getWeatherInfo(cityName);
}

